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āĻŦāĻžāĻ¯āĻŧā§ āĻŽāĻžāĻ¨ā§āĻ° āĻĄā§āĻāĻž āĻ¸āĻ°āĻŦāĻ°āĻžāĻš āĻāĻ°ā§: the World Meteorological Organization - surface synoptic observations (WMO-SYNOP) (worldweather.wmo.int) and the Slovak hydrometeorological institute (SlovenskÃŊ hydrometeorologickÃŊ Ãēstav) (shmu.sk)